Re: Bobbin Winder Won't Turn:
This should not be too difficult to fix if you open the top of the machineto see what is/is not going on inside. Most likely the rubber O-ring, or rubber "Tire", as some call it, is either out of adjustment, dried or worn too much to work. If adjustment is not the problem, than replace it with a new O-Ring of the proper size. With this done, it still will need adjustment. Hope this Helps.
Sincerely, --Amender (2018 FEB 19).

try this take machine oil and oil eerier where the buttons that
changes for different stiches, then set the machine for straight
stich take a piece of fabric and sew on it for a 1 minute do the same for every different stich do this for halve hour, by doing this
your getting the different stiches in order and gear to synchronize
together.
hope this helps.

Your machine probably begins with a 3 digit number followed by a period and then a series of numbers. You will need that full number. Even if you don't find a manual for your exact model, frequently a close model manual will work for your purposes. The only differences between models could be the number of decorative stitches, the number of accessories, etc. So, the basic instructions will be the same or similar across multiple models.

You know what, I've had an older Kenmore machine and regret the day I gave it up. It is still running happily today--just not in my house :^ (

I think it would be worth taking it somewhere to see if it can be repaired. Could be just a small problem easily fixed and you'd still have a great machine. Besides, you probably won't be able to replace it for anywhere what the price of repair would be.

FWIW, the new machines aren't anywhere near the quality of the older mechanicals. I have over 12 machines and only one of them is computerized... Just saying...those old mechanicals will run almost forever if properly cared for.

Put the bobbin on the short metal stick on top of the machine. Unthread the machine. Put the spool of thread on the tall, left side stick on top of the machine. Take the thread and wrap it counter clockwise around the circular, short, metal thing on the left side of the top of the machine, only 180 degrees. Thread the thread through the hole in the bobbin (which should be on top). Press the bobbin to the right, into the little white thing. Pull the turning wheel on the right side of the machine out. While holding the end of the thread, softly press the presser foot so that the thread goes around the bobbin a few times. After that, cut the end down to the bobbin. Now, press the presser foot down and wind the bobbin until it stops on it's own.

This isn't a new machine, is it? If not, then you need to make sure it includes a power cord and foot control so the machine will run or it can be tested. You can probably pick up other accessories, like presser feet, needles, etc. for the machine elsewhere. However, if the machine happens to use cams for stitch patterns, you probably won't be able to use those stitches unless the cams are included.